A high frequency iron loss measuring system

A high performance iron loss measuring system is introduced by using an 8-bit microcomputer, a two-channel memory device with high speed A/D converters and a wide band power amplifier. A required time to obtain a datum of one experimental point is about one minute when the error between the desired maximum flux density and the settled one is allowed within 0.5%. This system makes it possible to measure iron losses in the frequency range up to 1MHz. The results have a good correlation to the measured results by using the U-Function Meter.